ML20198L030
| ML20198L030 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 06/02/1986 |
| From: | Paperiello C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8606040193 | |
| Download: ML20198L030 (2) | |
See also: IR 05000373/1986018
Text
F-
.,
J U.N 2
1986
Docket No. 50-374
Commonwealth Edison Company
ATTN: Mr. Cordell Reed
Vice President
Post Office Box 767
Chicago, IL 60690
Gentlemen:
We have reviewed your letter of April 30, 1986, in which you described your
intention of making a scheduhtr modification to an earlier commitment to the
NRC regarding certain long-term corrective actions to address the problem of
high temperatures in the Unit 2 drywell. Specifically, you notified us of your
intent to defer work from the first refueling outage to the second refueling
outage. As I discussed with Mr. D. Farrar and other members of your staff and
other members of the Region III staff in meetings in this office concerning this
matter on September 3 and November 1,1985, and in subsequent conversations
with your staff on May 5 and 23, 1986, we understand that you have performed
.
analyses which indicate that the deferral will not affect the qualification of
safety-related equipment inside the drywell . We also ur.derstand that careful
attention will be given by you to the ongoing temperature monitoring program to
assure high drywell temperatures that might develop will be prcmptly detected,
analyzed, and resolved. A recent NRC inspection (see NRC Inspection Report
Nos. 50-373/86019; 50-374/86018) conducted on May 6-8, 1986, confirmed that
corrective actions taken to reduce the Unit 2 high Drywell temperatures have
been effective.
Temperatures have been markedly reduced in the drywell ranging from 10 F to
90 F at various elevations. The drywell bulk (area) temperature has been
caduced an average of 12 F.
Therefore, the NRC has concluded that the
postponement of the modifications would not adversely affect the qualification
of the equipment. Given these understandings, we have no objections to the
scope and timing of your intended deferral as described in your April 30, 1986,
letter.
If you have any questions regarding this matter, please contact us.
Sincerely,
$C A
Carl J. Pape iello, Director
Division of Reactor Safety
See Attached Distribution
8606040193 860602
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Distribution
cc:
D. L. Farrar, Director
of fluclear Licensing
G. J. Diederich, Plant
Manager
DCS/RSB (RIDS)
Licensing Fee Management Branch
Resident Inspector, RIII
Phyllis Dunton, Attorney
General's Office, Environmental
Control Division
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